EP 3767073 A1 20210120 - AIRFOIL COOLING PASSAGE HAVING HOURGLASS SHAPE
Title (en)
AIRFOIL COOLING PASSAGE HAVING HOURGLASS SHAPE
Title (de)
SCHAUFELKÜHLKANAL IN SANDUHRFORM
Title (fr)
PASSAGE DE REFROIDISSEMENT DE PROFIL AÉRODYNAMIQUE EN FORME DE SABLIER
Publication
Application
Priority
US 201916515528 A 20190718
Abstract (en)
An airfoil (78) includes pressure and suction side walls (86, 88) that extend in a chord-wise direction between leading and trailing edges (82, 84). The pressure and suction side walls (86, 88) also extend in a radial direction to provide an exterior airfoil surface. A cooling passage (106, 107, 109) that has an hourglass shape is arranged between the pressure and suction walls (86, 88). The cooling passage has a first width (W<sub>1</sub>) in the chord-wise direction near the suction side wall (88), a second width (W<sub>2</sub>) in the chord-wise direction near the pressure side wall (86), and a third width (W<sub>3</sub>) between the pressure and suction side walls (86, 88). The third width (W<sub>3</sub>) is smaller than the first and second widths (W<sub>1</sub>, W<sub>2</sub>).
IPC 8 full level
F01D 5/18 (2006.01); B22C 7/00 (2006.01); B22C 9/00 (2006.01)
CPC (source: EP US)
B22C 9/00 (2013.01 - US); B22C 9/10 (2013.01 - US); B22C 9/103 (2013.01 - EP US); B22C 9/106 (2013.01 - US); B22C 9/22 (2013.01 - US); B22C 9/24 (2013.01 - US); B22C 13/12 (2013.01 - US); F01D 5/187 (2013.01 - EP US); F01D 25/12 (2013.01 - US); F02C 7/18 (2013.01 - US); F05D 2220/32 (2013.01 - US); F05D 2230/211 (2013.01 - EP); F05D 2230/22 (2013.01 - EP); F05D 2250/131 (2013.01 - EP); F05D 2250/185 (2013.01 - EP); F05D 2260/204 (2013.01 - US); F05D 2260/221 (2013.01 - EP); Y02T 50/60 (2013.01 - EP)
Citation (search report)
- [XY] US 2013149169 A1 20130613 - CAMPBELL CHRISTIAN X [US], et al
- [XY] EP 2258925 A2 20101208 - ROLLS ROYCE PLC [GB]
- [Y] EP 3480432 A2 20190508 - UNITED TECHNOLOGIES CORP [US]
- [Y] US 2015184522 A1 20150702 - SMITH AARON EZEKIEL [US], et al
- [Y] EP 1793085 A2 20070606 - GEN ELECTRIC [US]
- [Y] US 6206638 B1 20010327 - GLYNN CHRISTOPHER C [US], et al
- [Y] US 2006292005 A1 20061228 - PIETRASZKIEWICZ EDWARD [US], et al
- [X] EP 3467264 A1 20190410 - UNITED TECHNOLOGIES CORP [US]
- [XY] US 2017101893 A1 20170413 - MARSH JAN H [US], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3767073 A1 20210120; US 11111857 B2 20210907; US 11624322 B2 20230411; US 11982231 B2 20240514; US 2021017906 A1 20210121; US 2021363924 A1 20211125; US 2023203991 A1 20230629
DOCDB simple family (application)
EP 20186780 A 20200720; US 201916515528 A 20190718; US 202117392573 A 20210803; US 202318179479 A 20230307